vchan_cyclic_callback(9)

okay bestie, welcome to the vchan_cyclic_callback(9) page in the Kernel API Manual 💅 this one is short and sweet fr fr — it’s literally about reporting the completion of a period, no cap.

✨ NAME ✨

vchan_cyclic_callback — report the completion of a period. 🎀

🌸 SYNOPSIS 🌸

void vchan_cyclic_callback (struct virt_dma_desc *vd );

that’s the whole signature, bestie — copy it exactly, mwah 💖

🎀 ARGUMENTS 🎀

• vd — virtual descriptor. that’s the vibe: the virtual descriptor in question 🦋

🦋 SEE ALSO 🦋

go peek at these, iykyk 👑

• Kernel file ./drivers/dma/virt-dma.h
• vchan_tx_prep(9)
• vchan_issue_pending(9)
• vchan_cookie_complete(9)
• vchan_vdesc_fini(9)
• vchan_terminate_vdesc(9)
• vchan_next_desc(9)
• vchan_get_all_descriptors(9)
• vchan_synchronize(9)

that’s it, bestie — source/version: ./drivers/dma, date: October 2026, slay 💖✨🎀